Median estimated market value for properties in this county.
AssessorSearch county dataPetroleum County, MT
Petroleum County, MT assessor property search and records
Use this county guide to find official assessor property search resources, recorder and deed links, tax records, GIS parcel maps, permits, and property data insights for Petroleum County, Montana. Search an address or APN, then jump to official county sources or property tax and value data.
Search a Petroleum County address or APN
Official sources
Petroleum County assessor, recorder, tax, and parcel map sources
Use this table to find the official county source for assessor property search, recorded documents, property tax, GIS parcel maps, permits, and zoning records.
| Record type | Official source | Notes |
|---|---|---|
| Assessed values | Petroleum County Assessor Departmentpetroleumcountymt.org/departments/assessor/ |
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| Property search | Montana Department of Revenue Property Searchsvc.mt.gov/dor/property/cov |
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| Deeds and recorded documents | Petroleum County Clerk and Recorderpetroleumcountymt.org/departments/county-clerk-and-recorder/ |
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| Property taxes | Petroleum County Treasurerpetroleumcountymt.org/departments/treasurer/ |
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| GIS and parcel maps | Montana Cadastral Parcel Mapsvc.mt.gov/msl/cadastral/ |
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| Permits and building records | Montana Building Codes Programbsd.dli.mt.gov/building-codes-permits/permit-applications/building-permits/ |
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| Zoning and land use | Petroleum County Growth Policypetroleumcountymt.org/wp-content/uploads/2026/02/Petroleum-County-Growth-Policy-2022-Revision.docx-1.pdf |
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County data
Petroleum County tax rates and property values
County and city-level rollups from AssessorSearch indexed property data. Use these values as directional context, then verify parcel-specific details with the official county sources above.
Median assessed value from county assessment records when available.
AssessorSearch county dataMedian annual property tax amount from indexed tax records when available.
AssessorSearch county dataMedian effective property tax rate calculated from annual tax and value fields.
AssessorSearch county dataCity property data
Top city rollups for estimated value, assessed value, property tax rate, and tax amount.
| City | Median estimated value | Median assessed value | Median effective property tax rate | Median tax amount |
|---|---|---|---|---|
| Winnett | $537,730 | $81,648 | 0.23% | $444 |
FAQ
Petroleum County property records FAQ
Common questions about assessor, deed, tax, GIS, and permit records.
Where can I search Petroleum County property records by address?
Use the official Montana Department of Revenue Property Search to search Petroleum County property records by address or parcel number. Use AssessorSearch property search as a free, easy-to-use option to search Petroleum County by address or APN.
How do I find the owners of Petroleum County properties?
Use the official Montana Department of Revenue Property Search for county ownership and parcel records when owner names are available online. Use AssessorSearch property search as a free, easy-to-use option to look up Petroleum County properties by address or APN.
Where can I verify assessed value in Petroleum County?
Use the official Petroleum County Assessor Department for assessed values, parcel details, exemptions, and property characteristics when those records are available online.
Where can I look up Petroleum County property tax bills or payments?
Use the official Petroleum County Treasurer for property tax bills, payment history, due dates, or tax collector records.
Where can I find deeds or recorded documents in Petroleum County?
Use the official Petroleum County Clerk and Recorder for deeds, mortgages, liens, plats, and other recorded documents. These records are usually separate from assessor property-value records.
Where can I view parcel maps or GIS data in Petroleum County?
Use the official Montana Cadastral Parcel Map for parcel maps, map layers, boundaries, and GIS context. GIS maps should be treated as reference tools, not legal surveys.
Where can I search permits or zoning in Petroleum County?
Use Montana Building Codes Program for permits and Petroleum County Growth Policy for zoning or land-use records. City properties may require city-specific permit or planning portals.
Can I build a list of Petroleum County property owners?
Use Affix by AssessorSearch for county property owner lists, filters, exports, skip tracing, and outreach workflows.
Related counties
More Montana property records
Use related county pages when researching nearby property records or comparing official source patterns.